Box covering machine



July 198, l932. P. w. FLEISCHER ET AL 1,868,284

Box covERING MACHINE Filed March 25. 1951 11 Sheets-Sheet 1 lNvENToRs PAuL hf. FL Elsa/15k .1 MART/N FE yuscf/ 320 324 BY w f 3f@ l ATTORNEYS P. w. FLl-:lscHER E- r AL.. 1,868,284

July 19, 1932.

` Box covERING MACHINE 11 Sheets'Sheet 2 Filed' March 25, 1951 PAuL w, FLE/5 cHER J 'MAR l BY ATTORN EYS July 19, '1931 P. w. FLElscHER ET Al. 1,858,284

BOX' COVERING MACHINE Filed March 25, 1951 11 Sheets-Sheet 3 INVENTORS PAM M FL E/SCHER .mL MA/Pr//V FEyz/scf/ avg ATTORN EYS July 19, 1932- P. w. FLEISCHER ET AL 1,868,284

BOX COVEBING MACHINE 11 Sheets-Sheet 4 Filed March 25, 1931 INVENTORS mwa/@MM w wl.;

ATTORN EYS Jly 19, 1,932-v P. w. FLElscHER ET' AL 1,868,284

Y BOX covERING MACHINE l Filed March 25, 1951 11 sheets-sheet 5 I Il" Il un..

INVENTORS B25@ 1 www ATTORN EYSl July 19, 1932. P. vw. FLElscHER ET AL '1,863,284

Box covERING MACHINE Filedmarch 25, 1931 11 sneetsfsneet 6 PAuL hf. FLE/SCHER d MART/N Ffyasc BY 05W W ATTORNEYS' Box COVERING MACHINE Filed March 25, 1951 11 Sheets-Sheet W5- I ""*lm N l f ll lh-Z o PAI/L h( FL/SCf/ER mhh-f90 ff@ WW; .Mr/255mm Hmmm 11 Sheets-Sheet 9 ATTORNEYS July I9, 1932. P.\w. FLElscHER ET AL Box covERING MACHINE Filed March 25, 1931 Juli? 19., 1932. P. w. FLElscHER ET AL 1,868,284

BOX COVERING MACHINE Filed- March 25, 1931 11' sheetssneet 1o INVENTORS PAUL h4 FL E/s MRW 7A/ 127m Ffyz/scf/ ATTORNEYS Patented July 1 9, l1932 'UNITED' STATES PAUL WERNER FLEISCHER AND MARTIN FEYIBUSCH, OF NEW JERSEY,

ASSIGNORS TO NEW JERSEY MACHINE A. CORPORATION OF NEW JERSEY CORPORATION, OF HOBOXEN, NEW JERSEY,

BOX COVERING MACHINE Application led March 25, 1931. Serial No. 525,050.

Our invention relates Vto machines for a plying to boxes, generally of square* or blong shape, covers made of paper 0r like material which is glued to the b'ox bodies. The object of our present invention is to simplify machines of the above-indicated class and to render them more reliable in operation. The improved machine is designed for the same class of work as the machine disclosed in Letters Patent of the United States No'. 1,279,312 issued to one of us, the said Martin Felybusch, on September 17, 1918.

n the referred embodiment of our invention, as escribed in detail hereinafter, the

l entire. operation is conducted in six steps,

performed at six successive stations, in-

stead of seven, as in the Vpatent mentionedabove. At the first station, box bodies are fed to the proper position; at the second sta- ,o tion, box covers are gumrned and applied to the box bodies in a flat state; at the thirdstation, all the projecting sides (generally four) of the box cover are folded against the sides of the box bod and glued thereto, the projecting corners o some of the sides being tucked under the other sides ofthe cover; at the fourth station, the edge portions of the cover, which extend beyon the free edges of the box body, are first bent inwardly to a position parallel with the bottom of the box body and then turned in to engage the inner surfaces of the sides of the box body, to which they are glued; at the fifth station, pressure is exerted to cause the box cover to adhere firmly and smoothly to the box body; and at the sixth stationthe covered box is ejected. In the preferred form of our present invention, the box bodies are fed to a rotary member which is moved intermittently to carry'the box bodies fromone station to the next. The use of such a rotary member simplifies the constructionand also gives great rigidity to the said member or carrier which brin the box bodies to the successive stations. ur present invention also includes improvements in the individual devices operating at 'the several stations, as described below. In particular, we have de# vised a novel and very eicient mechanism,

for carrying theibox covers to the box bodies which mechanism preferably has a suction head to pick up the box covers, and includes special provision to prevent automatically' contact of the suction head with the covergumming appliance in the event that such suction head should fail to pick up a box cover. These and various other features of our invention will appear more fully from the. detailed description following hereinafter and from the appended claims.

A satisfactory and typical example of our invention is illustrated by the accompanying drawings, in which Fig. 1 is a plan viewof the entire machine; Fig. 2 is a vertical section on line 2-2 of Fig. 1; Figs. 3 and 4 are partial elevations, on an enlarged scale, look' ing inthe direction of the arrows 3 and 4 respectively of Fig. 1; Fig. 5 is a vertical secy tion on line 5-5 of Fig. 4; Figs. 6 and 7 are vertical sections on lines 6`6 and 7--7 respectively of Fig. 1; Fig. 8 is a detail elevation, ona still larger scale, with parts in section on line 8-8 of Fig. 5; Fig. 9 is a" detail plan view of certain arts shown at thel igs. 10 and 11 are l upper portion of Fig. 8; horizontal sections (upon enlarged scaleson lines 10-10 and 11-11 respectively of ig. 6; Fig. 12 is a detail plan view (with parts in section) of certain elements shown in Fig. 10;'Fig. 13 is a partial plan view of the machine, with parts in section; Fig. 14 is a detail elevation, looking in the same direction as Fig. 3, but withthe arts in a different position; Fig. 15 is a detail vertical'- section on the line 15-15 of Fig. 1; Fig. 16 is a detail "l vertical section on line 16-16 of Fig. 6; Fig.v

17 is a vertical section on line17-17 of Fig. 13; Fig. 18 is a plan of the elements shown in Fig. 17, with parts insection and others broken away; Fig. 19 isa perspective view of a box blank or box body such as maybe covered by the use of our im roved` machine; Fig. 20 is a plan view of ala lor box covering such as is a plied to said blank or by our machine; 1g. 21 is a side elevation f a box body and' the covering applied thereto, as they ,appear at an intermediate stage of the operation, Fig. 21* is a vertical section of the same parts'as they appear at the end of the operation; Fig. 22 is a vertical section on linev 22-22 of Fig. 13; F ig.m23 is a horizontal section on line 23-23 of( Fig. 24, the latter bef ing a side elevation, upon an enlarged scale, of certain parts shown in Fig. 6; 25 is a partialelev'ation,with parts in section on, line 25=25 of-Fig.-13; Fig. .26 is a plan 'view` of the elements shown in Fig. 25; and Fig. 27 4Vplanvievv ofthe elementsy shown in Fig.

dable manner, for instance' by means yof gear` Q 'in-ga54A (Fig. 2) for `driving one of the beltsupporting rollers from a shaft which by #means ofachain 56 receives its motionv from a` shaft 57 journ'a'led inthe central pillar or "housing r58. By-means of bevel gearing 59 fands-spur gearing 60, shaft 57 is driven from fifth-'e"central vertical 'shaft 61. The latter is vdriven by means of spur gears 62 (Figs. 1 :and17.), a short vertical shaft 63, ,bevel gearrii-ng64 and ai horizontal shaft 65 having a connection, controlled by a clutch 66, with a pulff'ley67 vmounted loosely on said shaft and 'f :..ldriven by means of a belt 68 from the motor 2.69.- spring normally keeps the clutch fengaged.:.

Stationary upright .guides 71 (Fig. 1) en- -igagethe'box -bodies on opposite sides and @.ilholdf'themt against lateral movement. These l-.fgi'lidesffextend beyond-:the delivery end of "1 saizdzupper run of the belt 53, over a portion .fa' platform v7,2 on to which the box bodies are. {pushed bythe movement of said belt. lThe .feed,..fmovement' of said box bodies is ;-1arrested ,Whenf the front box body comes in ontact With a; stationary stop bar 73 extendelt; feeds thebox bodies. Preferably the stop bar7:3;is; adjustableJ lengthwise of said direcionzof feed', as by the slot-and-set screw conc'tioif'ilidicated at;74

' y sone'sde:(the.left1lin niinigwhiehthefront box body vis arrested by thestop?57.3%:` the platform 72 has an openi sing-"75'fsuieientsize to allow the box body torfpasstherethroughg' 'lhe transfer of said bdyifi-om'.therfposition against the stop 73, as-shovvnvinfg g. to-fa position in registry tliztheopenngf, ips-effected by the followngfipusher mechanism, the stop bar 7 3 acting saigf'tleffox:.thefbox'body during such trans- 4amov'enient: -rbar 76 is slidablel in stationary b' rte 'o ofstravelgof he; feed belt 53. By riding over the stop 1) of the posi-- 7, transversely to themovement, the box body is guided by the stop l bar 73 and also by an opposing stationary' guide bar 80, which preferably is adjustable toward and from the stop bar,y as by the slot-and-set screw connection indicated at 81.' On the pusher bar 76 is pivoted at 82 a sleeve or guide 83 in which is mounted to slide lengthwise a rod8-l, anelastic connection, such asa spring 85 coiled on said rod between the guide 83 and ahead at one end of Vthe rod, being interposed between said rod and the pusher bar. The other end of the rod 84 is connected pivotally With the upper end of a lever 86 fulcrumed at 87 and provided with a roller 88 engaging a groove on a cam 89 secured to the shaft .57. i

Adapted to register at certain times the opening 75 are cores 90 of proper shape to .ft inside a box blank, each of said cores being carried by the upper end of a rod 91 mounted to slide vertically in a guide 92 secured to a sleeve or carrier 93 surrounding the pillar- 58, and rotatable thereon aboutthe axis thereof, on bearing balls 93. The lower end of the rod 91 carries a roller 94 for imparting up and down movement to said rod. Normally, the corev is in its lowermost position in which it rests on a plate 92 rigid with the guide 92, said plate being of the same shape and size as the core, their outlines being flush with each other. has six cores 90 spaced equally (at 60 apart) along the periphery of the sleeve 93. The

latter has internal gear teeth 95 (Figs. 2, 6.

and 12) in mesh with a pinion 96 on a shaft 97. This pinion also meshes with a spur gear 98 loose on the shaft61. Connected rigidly with saidspur gear is a pinion 99 in mesh lwith a spur gear 100 on the shaft 97 The Wheels 96, 100 must be loose relatively to each other, that is to say, at least one of them must be loose on the shaft 97. With the spur gear 100 is connected rigidly la Geneva Wheel 101 (Fig. 11) co-operating with aholding segment 102 rigidvwith the shaft 61, a rol-ler 103 the journal pin of Which is connected rigidly with said shaft, serving to drivethe Wheel 101 intermittently, by engagement with radial grooves 104 in said. wheel. in a Well-known manner. The Geneva wheel 101 has six teeth. so that ateach complete revolution of the shaft 61. the spur gear 100 and the vsleeve 93 will be given one-sixthl of a revolution", the gear ratio between 100 and 99 on one hand. and 96. 98 on the other hand being so selected that the sleeve 93 and rWah The machine illustrated l the Geneva Wheel 101 will have the same angular movement.

When one of the cores 9() is in registry with the opening 75 as in Figs. l and 2, it is in vertical axial alignment with a plunger l105 with a. rod 116 mounted to slide verticallyin stationary guides 117. The lower end-of the rod 116 carries a roller `118 which by the action of a spring 119 connected with the lever 111 is pressed against a cam 120 secur`ed rigidl to the shaft 61. At the proper time,

once uring each revolution of the shaft, the

plunger 105 is'moved down by the cam 120 to push 'a box blank through the opening 75 anism for vgumming a label and applying it to` a box blank on the core 90, 92. f This mechon to the core which at that time is resting on the plate 92 and is clearv of the platform 72 as shown in, Fig. 2.` The plunger then rises out of contact with the box blank so that the core 90 with the box blank thereon may be carried to the next station by the partial revolution of the sleeve'93 through 'an angle of 60.

' At the second'station is `located the mechanism,V (Figs. 1, 3, 5, 7,' 8,9 and 14) is constructed as follows: Label or'box coverings 121 of the shape shown in Figs. l1 and 20 are' stacked Vin 'zamagazine 122. 'For the ready Yinse'rtionof labels, one side of the magazine,

122', may be moved away, as by swinging on a pivot 123, a nut 124 serving to secure said side in its normal nupright position. The labels are supported on a follower 125 which is fed or indexed upward by any wellknown or approved mechanism. of which the rack bar 126 and the hand-wheel 126 may form a part. Since my invention does not relate to such indexing mechanism, the latter -has not been shown in full. The uppermost label or box covering 121 is'adapted to be picked up and removed from the magazine 122 by a suction head 127 open at the bottom, the interior of said head beingr in communication by a flexible tube'128 with a stationary connector 129 the cavity or chamber 130 of which is open. to the outside air, or closed thereto. according tothe position of a valve 131. Said chamber is in permanent communication tube 132 with thesuction port of an air .p'ump 133 driven by means of a cham 134 from a shaft 135 which is rotated continuously by means of a belt 135 and aA motor 135 (say, an electric motor).

By gearing or other suitable connectiommotionv is transmitted from the shaft 135 to a wheel or sleeve 136. mounted loosely ona shaft137 on which is secured rigidly a ratchet wheel 137 in engagement with a pawl136 carried pivotally by the vwheel or sleeve 136. The

- shaft 137 carriesl? rigidly another -ratchet wheel 137, and loosely another sleeve 138' 174. engaging a .cam

carrying pivotally a pawl138inengagement with said ratchet wheel. The sleeve 138 carries rigidly a pinion 138 in mesh with a.4

spur gear 139 on a shaft 140. This shaft is driven by means of spur gearing 141, a shaft 142, and bevel gearing 143 from a shaft 144 journaled' radially in the pillar 58 and' receiving its motion from the shaft 6l by bevel gearing 145 (Figs. 7 and 11).

AThe shaft 140 carries a number ofcams foroperating the various instrumentalities of the label pick-up, gumming and transfer mechanism. The valve 131is carried by a lever 146fulcrumed at 147 and pulled away from. the connector 129 by a spring 148, as lillustrated by Fig. 3. This lever 146 has an arm 149 movable between two longitudinally adjustable stops 150 carried by a rod 151 p'iv-j otally connected at 151', near its upper end, with alink 15 fulcrumed on the frame at 151a. The lower end of'this rod is pivotally connected with a lever 152 fulcrumed at 153'A and carrying a roller 1.54 in operative Vengagement with a cam 155 onthe shaft 1.40. A

spring 156 pullsV downward on the rod `151 to holdth'ev roller 154 against the cam Y The suction head 127 (Figs. 3,'4, 8).is secured .to a vertical rod 157 movable in a guide 158 forming part ofa carriage 159 provided ,at the middleon one side (Fig. 1) and at each end on the other side/with twosuperyposed rollers 160 running 'on stationary parallel rails'161. The carriage is also'provided with a boss `162 within'vvh'ich a rod 163 (Fig. 5) is adapted to slide in a direction parallel to the rails 161. Springs, 164 tend to hold'the rod 163 in a norma-l position relatively to the carriage, and the tension ofl these springs may ybe adjusted by means 'of tubular nuts 165 screwing2 into the boss 162. The rod 163 ismade rigid with a rackvbar 166 suitably' guided relatively to the carriage, as indicated at 167. The racwbar 166 is in mesh with a spur gear 16 on a shaft 169` whichalso carries a inion 170 in mesh with another rack bar 1 1 having a forked lower end 172 guided on the shaftf140 while the upper por-v tion of the bar 171 'is guided by a cross bar' 173. On`this bar 171 isv journaled 'a roller groove 175 inthe sp1-1r gear 139.

A spring17 6 (shown best in Fig. 3)

' to pull the rod 157 and the suction head 127 downwardly. On opposite sides of said rod,

near its upper end, atA different levels, are

`mountedrollers 177, 178 rotating about horizontal axes. The lower roller 177 is adapted to ride at times on transverse projections 179 secured to the ends of an arm 180 carried by a rock shaft 181. On this ,shaft is securedanother arm--182 (Fig. 3) pivotally connected at 183 with arod 184, the' lower endof which 1 straddles the shaft 140 and carries a roller 185.moving in a cam grove 186on the face of a cam diskh187 secured to the shaft 140.

The upper roller 178k (Fig. 8) is adapted tov engage at times a stationary track member 1'88. Above this member and in engagement therewith, is an upper track `member 189 'which in one of its positions (Figs. 1, 8 and 9) is to one side of the path of said `roller 178, so as'to be clear of such rolleinfThe track member 189 may however be moved inwardly soas to come into the path of the roller 178. For this purpose two pins 190 project from the lower member 188 into parallel oblique slots 191 in the upper member l189. Furthermore7 said upper member is provided with a transverse slideway 192 (Fig. 8)y into which projects a ball 193 at the lower end of a crank arm 194 secured to a rock shaft 195 journaled in stationary bearings. The shaft 195 extends transversely to the path of the carriage159. Itwill beevily secured to the lever 146. 159 is also provided with two longitudinallydent that rocking the shaft 195 will move the ball 193 lengthwise of said path, imparting a like motion to the upper member 189,

but owing to the oblique slots 191 such longitudinal motion of the member 189 will be accompanied by a transverse motionv of said member, the slideway 192 sliding on the ball 193. Thus the inner edges of the two members 188, 189 maybe brought into registry (Fig. 4). The shaft 195 is operated at the proper times by a rod 196- (Figs. 3 and 14)- the upper end of which is connected pivotally at 197 with a crank arm 198 rigid on said shaft. The lower end of the rod 196 is connected pivotally at 199 with an arm 200 (Fig.

fulcrumed at 201 and carrying a roller 202 in engagementwith the peripheral cam surface of the cam disk 187. A spring 203 keeps the roller 202 against said cam surface. The rock shaft 195 is further provided with an arm 204 secured thereto rigidly and vhav- `ing a notch 205 (Fig. 14) in which is adapted-to be caught a pin 206 on an arm' 207 rigid- The carriage adjustable screws or pins 208 (Fig. 5) arranged to stop the carriageby engagement with stationary transverse frame members 209. These members also carry tubular longitudinal projections 210 the open ends of which face each other and are adapted to receive at times the ends of longitudinal projections 211 onV the carriage 159, these projec-4 tions 211 being preferably also adjustable lengthwise, and normally held in position by any suitable means, for instance set screws such as indicated at 212 in Fig. 8. The parts 210, 211 co-operate after the fashion of dashpots and pistons to check the motion of the carriage toward the ends of its travel.

" At 213 (Figs. 3 and 5) I have indicated a tank containing glue or other suitable adhesive in liquid or pasty form, and at 214 a roller which dips into said adhesive and transfers'it to the gumming roller 215, these rollers being rotated by mechanism referred to below. The lower roller 214 may be adjusted toward and from the gumming roller 215 by mounting the former on arms 216 fulcrumed at'217, and adjusting screw 2184 serving to swing said arms, while a lock nut 219 secures them .after adjustment. Preferably the tank 213 may be swung aside for filling or cleaning, by mounting it on a movable carrier 220. As mechanism for this purpose is:

well-known inthe art, I have not illustrated its details, but the elements indicated at 22 form part of such mechanism.

The gumming roller 215 (and through it, the transfer lroller 214) may be rotated by means of a chain 222 (Fig. 4) connecting a sprocket 223 on-the shaft of the roller 215 (Fig. 3) with a sprocket 224 (Fig. 4) rigid on the shaft 137.

Even when the machine is stationary (so that the shafts 144, 142, 140 do not rotate), the rollersl 214, 215 will continue to rotate, since the motor 135" is rotated continuously, driving the shaft 137 (Fig. 4) through the pawl 136'- and the ratchet wheel 137'. The

paWl 138" slips on the stationary sleeve 138',

while the shaft ,137 drives sprocket 223, and the gumming roller 215 by means bf the chain 222. Thus the rollers 214, 215 are kept in motion, so that the adhesive on them will not be permitted to set,'dry, or harden when the other parts of the machine are stationary.

. During the normal operation of the ma chine,.as the shafts 140, 142, 144 are rotating, the spur gear 139 o'n the shaft 140 rotates the pinion 138 and the sleeve 138' with the lpawl 138' at a higher rate of revolution than is impartedv to the shaft 137 by the shaft 135.. The

pawl 138" thus rotates the ratchet wheel 137 and its shaft 137 with the other ratchet wheel 137' at a higher rate than that imparted to them bythe pawl 136'; the latter therefore slips over the wheel 137". It will be understood that the pawls 136', 138" (which are los spring-pressed lpawls of well-known character) and theteeth of their ratchet-wheels ner described below. This device comprises a plunger 225 (Fig. v7) having depending edge portions of anges 226 located slightly farther apart than the sides 51 of the'box body 50 (F ig.' 19). Said plunger is secured rigidly to an arm 227 extending through a slot 58' in the housing 58v and rigidly connected with arod 228 mounted to slide vertically in stationary guides 229.y A spring 230 1,ses,aa4

urges the arm 227 downwardly, to keep a roller 231, located at the lower end of the rod 228, in contactwith a cam 232 formed on the upper face of the spur gear 98.

The operations takingv place at the second station are as follows: g

The extreme outward position of the'carriage 159 is'slightly to the right of the one shown in Fig. 5, and bring the suction head 127 into registry with the magazine 122 coni taining the box coverings 121, the roller 177 at this time resting on the outer projection 179 (the one shown at the right in Fig. 5), which is moved downwardly by al proper movement of the rock shaft 181 to allow the suction head to be lowered by the spring 17 6,

into contact with the uppermost box covering 121 in the magazine 122. At this time, the valve 131 (Fig. 3)v is open, and the rod 151 is in its upper position. ,The upper track member 189 is in its active position, in which chambervl30. Thesuction at'this opening thus becomes more powerful, so asI to be able to overcome the power of the spring 148- when .the rod 151 is moved downward to permit swinging of the leverv 146" in the valveclosing direction. It will be understood that' the valve is brought to theclosed position,

I,not by the positive action of the rod 151,

but by the suction'exerted through the lateral opening of the chamber 130 when abox covering is picked up by the suction head 127. Therefore, should said head for any reason fail to pick up such a box covering, the suction through the lateral opening of the chamber 130will Vnot be strong enough to close the valve, and the latter (notwithstanding the downwardmovement of the rod 151) will remain in its open position (Fig. 3) thereby keeping the arm 204 locked in. a

vposition which corresponds to the active position of the track member 189. If, however, a box covering has been picked up properly, the valve 131 will be-clos'ed by the increased suction, lthus releasing the arm 204' and causing the track member -189 tofbe moved to its inactive .position bythe spring 203. in conjunction with the respective cam' mechanism. It Will be understood thatthe downward movement of the rod'151 is not of sufficient extent to close the valve 131 bya downward pressure of the upper'stop 150.

'but the valve is closed by suction alone. It

will be understood thatthe covering 121 isheld firmly against the suction head 127 by the, suction in tube128. Thearm 180 is then swung so as to raise the right hand lprojection 179 and with it the roller 177 and the suction head 127 with the box covering 121 adhering thereto, the upper roller 178 being thereby brought to a position above the stationary ltrack 188, the movable track 189 as,

stated being at this time in the inactive or retracted position shown in Fig. 9, and therefore clear the path of said roller 178. The carriage 159 then moves inwardly (toward lthe left), the track 188 holding the suction head'127 at such a levell that the lower surface of the box covering 121 adhering thereto will be brought in contact with the gumming roller 215 as the carriage 159 "passes from the position shown in Fig. 5 to the one shown in Fig. 3. During this movement, as the box covering is about` to clear' the gumming roller 215, the inner or left-hand projection 17 9 comes vunder the roller 17 7, the outer or right-hand portion of said projection being beveled as shown in Fig. 3 to insure'an easy passage of said roller on to the upper sur. v

face of said projection. When during the inward movement 0f the carriage 159 the .roller 178 drops oil the track 188,\the level at which the suction head 127 ,travels is governed by the inner projection 17 9, and as the carriage approaches its innermost position (Fig. 3) the arm 180 is rocked to move said the roller 177,' the spring 176 pressing the suction head 127 and the box covering 121 vcarried thereby, against the bottom 50 of the box .body resting on the plate 92. Atthis vprojection downwardly, out of contact with time, the rod 151 is given a'n upward movement, to the position shown in Fig. 3. As' soon as the lower stop 150 lifts the lever arm 149, the valve 131 is opened, the spring 148 assisting such movement, and since the suction which holds the box covering 121 against the suction head 127 is reduced considerably by the opening of the valve 131, the adhesion of said box covering to the box bottom will be sufficient to keep the covering Y from being lifted during the subsequent upward movement of the suction head. At about the same time with the upward movement of the rod 151, therod 196 is moved Aupwardly by the respective cam mechanism, to the position shown in Fig. 3, in which the rock shaft 195 brings the movable track .member 189 yinto proper position to be en- 'lhemovements ofv gaged by the roller 178. the valve 131 and of the rock shaft 195 just referred to, bring the pin 206'into locking engagement withthe notch 205 (Figs. 3 and 14), so that the rod 196 can not move downwardly until itis released fromV such locking engagement, as set forth below.- lThe suction head 127 is lifted by the arm 180 rocking to raise the inner projection 179 against the roller 177, until the roller 178 is at about the level ofthe track member 189, or slightly above. The carriage 159 then 'performs its outward movement (toward the right) during which the suction head 127 travels at a higher level than during its inwardv movement, and therefore remains clear of the teract the tendency of these two sides (to curl g upwardly owing to the effect of the moist adhesive; the other 'two sides have practicallyno tendency to curl.

During the outward movement of the carriage 159, lat about the time thel upper roller 178 comes to the right hand end of the track member 189, the lower roller` 177 lcomes into registry with the outer projection 179 (the` inner edge of which is beveled), and said projection becomes the support of the suction head 127. /As the carriage approaches its outermost position, the operation of closing the valve v131 and. retracting the movabletrack member 189 at the'time of picking up a box covering will be repeated substantially ias described above. Under normal yconditions therefore, thesuction'head, after picking up a covering, will travel inwardly at the level of the then return, without ysuch covering, at a higher level. It will be noted,fhowever, that if the suction head fails to pick up a box ,covering 121, the valve 131`will not close, and the arm 204 will remainl locked in the position corresponding to the active positionn of the movable track member 189. In case" of such failure, therefore, the suction head will travel at the higher level during its inward movement as well as during the outwardA movement, thereby preventing the suction head from becoming soiled by contact ,5 with the gumming roller during the inward Y rmovement, which contact would occur if the suction head vere allowed to travel inwardly 'at the lower level, in the event of no covering having been picked up by the said head.

At the third station (see particularly Figs. 1, 6, 13, 21, 23, 24, 25 and 26) the sides of the boxvcovering 121 are bent against the sides 51 of the box body. A plate 233 (Fig. 25) is adapted to pressdown on the box covering 121 so as to hold it smoothly against the bottom and remove any wrinkles. This plate is secured to two-rods 234 (Figs. 6, 23, and 24) vvextending u wardly to a weight 235,

` which supplies t e downward pressure forl the plate 233. Between the rods 234 extcnd mming roller 215, and will a'leverv 236 fulcrumed at 237..ona, lstationa bracket 238. By a linkf239, th the bar 236 is connected with a ro ed to slide vertically finy [statio u; 241. This rod carries a roller., y a cam groove 243 i'n thepe'ripher drical member 244 rigidlyY sec, shaft 61. The outer end ofthe., pivotally connected at. 245]v Witlihaving a like connection at 247 wit slidable vertically in statioruiryy The rod 248, or at least its upper square to engage the. lower ends,i 234 which'are either fast or loosel i 234, while the weight 2351is rigidly to said rods 234. It will befunde the upper end of. the rod 248 will a age the sleeve 23,4V from ybelo them withy the weight l235-and` r thereby raising the pressure `plate2l33` y. if 85,.;

box covering 121. lTo the lrowerfendL` fn th rod 248 is secured a plateI 250, whic side carries a vertical rod 251 mounted t slide in a stationary guide 252,v the, "late 2 being thus heldiagainst rotation. 'libe i end of therod 248 also carries rigidly, n plate 253 (Fig. 25) and 'apartition pl 254. The lower surface of the uppv, 250 is provided with an annularr groo adjacent to the partition plate25 v y similar groove 256 Ais providedin the' up surface of the lower plate 253. "In the ln there are provided ourhoriz'ontal slide 257 in which are movable radially slide': and 259 to which are pivoted carriers v261 respectively, at the lower" porti which are journaled abouthorizonta the folding orwrapping rollers 262, spectively. The rollers 262, whicha allel to each other, are located"-ata hi level than the rollers 263, whichdatteA tend transversely to the rollers 262 an adapted to engage those sides of the'boxfc ering 121 whicht have projections or tab their corners. Springs 264 pull thecar 260, 261 inwardly but enable themfto f outwardly as the respective rollers engagea press the box covering on the sides'lb51 ofI box body. 'From eac of the slide`sf258"25 a pin 265 extends upwardly throughjafs'u'l able opening in the lower'plate 253 [into a oblique or cam slot 266 in a plate or 'rin'gf L E mounted to rock in the annular groove V256 It will be evident that rocking the plate in one direction or the other will move l slides 258, 259 linwardly or outwardly. vI Su rocking movement is obtained as follows.A

The plate 267 has an extension-267;VVV 13) having a connection with a verticalfr'od 268, along which the extension 267 slides at the lower ends of which are located transmember 273 the forked inner end vof which straddles thesha-ft 61, while the intermediate portions carries a `roller 274 extending vinto a cam groove 275 in the upper surface of a (sk 276 secured rigidly to the shaft 6.1

The upper plate 250 has two radial guideways 277 in line with each other and inthe same direction in which the slides for the lower rollers 263 travel'. In these guideways are movable slides'278 carrying uprights 279 verse arms 280, each provided at its ends with tuckers 281 adapted to engage the porvtions or tabs b of the box covering (Fig. 20). Each slide27 8 hasa pin 278 projecting downwardl through a. suitable opening in the upper plate 250 and into an oblique orcam slot 282 in a -plate or ring 282 mounted` to rock in the annular groove 255. This plate is rocked by mechanism similar to that described in connection with thev plate 267. That is, the plate 282 has an extension 283 slidable up and down along a vertical rod 284 carried byan armv285 sel cured rigidly to the shaft 286 to which a rocking movement is imparted by an arm 287 and an actuating member 288 having a roller 289 extending inte a cam groove 290:

box covering causing them to stick to the box body,- the tabs b, however, remaining out of contact with the sides of the box. The further downward movement of the rod 248 brings the tuckers 281 into operative relation to the tabs b, and at this time the tuckers move inwardly to bend the tabs b against the other sides of the box body, to which they stick'y l (Fig. 21); Thereupon the upper rollers 262 come into engagement with the two other sides of the box covering, Iand fold them against the sides of the box body to which the tabs b have ust been applied; in other words, said other sides'of the'box covering are folded over the tabs b and hold them in proper posi. tion. lThe box covering is thus lglued both to the bottom 50 and tothe four sides 51 of the box body, but the sides ofthe box covering 121 are wider than the sides of the box body, and thus the edge portions'of the box covering project downwardly beyond the s ides'of the box body. The rod 248 rises, and the coveredl .box body advances to the next (fourth) station.

'At this fourth station, the projecting lower portions of the box covering are turned in, to' a 'horizontal' position, by the following mechanismV (see Figs. 1,'. 2, 11, 13,21, 22 and27) :.As the core 90, 92 (Fig. 2) .ap-`

proaches this station, during the partial I'evolution of the sleeve 93, the roller 94 at the lower end of the rod 91 enters a horigui'de 293, said slide being provided with a roller 294 engaging a cam groove in the face zontal groove 291 (open at both ends) on a vslide 292 movable vertically iny a stationary o`f a disk 295 rigidly secured to a shaft 296 straddled by the forked lower sa-idvslide (see Fig. 11). This shaft 296k aligns with the shaft 57 and is driven from the central shaft 61 by bevel gearing297. By this mechanism, the core with the covered box' thereon is lifted off the plate 92 to a position such as shown in Fig; 22, with the core 90 filling only about one-half the height of the box body. At this fourth station is also located a pressure device of the same character as set forth -in -connection with the third station, viz. a pressure fplate 298 wit-h rods 299, a weight 300,l a lever 301 fulcrumed at 302 on a bracket 303, a link 304, a rod 305 movablevertically in guides 306, and a roller 307 engaging a cam groove 308. The lever 301 is pivotally connected portion of at 309 with a rod 310 having a like connection at 311 withv a rod 312 sliding vertically in'stationary guides'313. The lower endof the rod 312A carries two pl'tes 314, v315of I which the lower plate has, i its upper face,

an annularrecess inA which-a plate or ring 316 (Fig. 22) is mounted torock about .the axis lof the rod 312. The upper'plate- 314 (Fig. 2)..has secured thereto a vertical rod 317-sliding in a stationary guide 318. The

lower face of the lower plate 315 has four radial guides 319 (Fig. 22) in which are movable horizontally slides 320. Each of these slidesearries a spring-pressed vertical plate 321 adapted to engage the 'corresponding side of the'boxcovering 121. vBelow said plate, each slide 320'carries a corresponding blade. 322 which is brought inwardly by the corresponding movement ofv the'slide 320,

lll

when the plates 314, 315 have been lowered to the position Fig. 22, in which the said blades are slightly below the sides 51 of the box body'. Such inward movement of the slides will therefore bend or turn the downwaordly projecting portions of the boxcovering 121 intothe horizontal position indicated by the i dotted lines. Theslides are operated .by the following mechanism: Each slide has a pin .323 extending into an oblique or f-cam slot l324 -in the ring 316. To this ring is also se' curedrigidly a pin'325 (Fig. 13) extending upwardly through a. slot-326 (concentric with the rod 312) in the'plate 314.V With the pinI 325 is connected a link 327 guided at 328 and slidable up and down along a vertical rod 329 carried by arms 330 and 330 (Fig. 2) secured rigidly to a vertical rock shaft 331. On said shaft is also secured a crank arm 332, for imparting `a' rocking movement to said shaft by means of an actuating member 333 which at one end straddlesthe shaft 61 Sand at the otherhas a pivotal connection 334 with the crank arm 332. The intermediate portion of the actuating member 333 carries a roller 335 engaging a cam groove in the upper face ofthe same rotating member 336 movement, as the plate 92" enters the box body, -it will fold the yinturned horizontal edge portions of the box covering upwardly to a vertical position against the inner surfaces of the'sides 51 of the box body (Fig.

A further'one-sixth of a revolution of the' sleeve 93 brings the covered box body to the 'fifth station, where pressure is exerted inwardly against the sides of the box covering wliile the core 90 and the plate 92 are within the box body and form a backingvfor said sides. This mechanism, shown in Figs. 1, 7, 13, 17 and 18, is similar in some of its features to those located at the third and fourth stationsh The followingparts are substantially the saine as described in connection with said previous station The pressure plate 337 (Fig. 17) connected by rods 338 (Fig. 7) with the weight 339, thev lever 340 fulcrumed at 341 on a, bracket 342, the link 343, and the actuating member 344 having avroller 345 engaging a camgroove 346 (see also 6) inthe upper face of the cylindrical member 244; the rod 347 pivotally connected:` at 348 to the lever 340 and at 349 to the rod 350 slidable verticallly in stationary guides 351; the plates 352,

354 (Fig. 17 secured to the lower end' of the rod 350; the slides 354 (Fig. 7) movable 4radially in guides on the lower surface of the lower plate 353 (Fig. 17) pins 355 extending upwardly from the slides into oblique slots 356 (Fig. 18) of a ring 357 mounted to turn in a recess of the plate 353, about they I vertical rod 360 extending upwardly from said plate and guided in the frame at 361,.

With the pin 35S-is connected a rod 362 (Figs. 13 and 18'), preferably of telescoping character, with a coil spring 363 connectingits two members yieldingly. This rod 362 is pivotally connected with, and slidable up and down on, a vertical rod 364 carried by an arm 3,65 secured to a vertical rock shaft 366. This shaft also carries a crankarm 367 pivotally l connected at 368 with anactuating member 369 (Fig. 7) straddling the shaft 61 and carrying a roller 370 engaging a cam groove 1n the upper face of the cam 120. Each of the slides 354 (Fig. 17 has a bracket 371 (preferably adjustable in a radial direction) carrying at its lower end a' pressure plate 372.

are moved outwardly, and raised again with therod 350, thus freeing the covered box for the next partial revolution.

This partial revolution brings the core with the finished covered box body to the sixthrand last station, at which the finished article is ejected by lthe following mechanism (Figs. 1, 6, 13, and- 16) z At/this station, the roller 94 (Fig. 6) enters a horizontal groove 373 (open at both ends) on a slide 374 mov-` able vertically in a stationary guide 375. The lower end of the slide straddles a horizontal shaft 376 extending radially withrespect to the central shaft 61 and connected therewith by bevel gearing 377. The slide 374 carriesa pin or roller 378 engagingfa cam oove on the adjacent face of-,a disk 379 rigidly secured to said shaft, so that the slide 374, and with lit the core 90, will be raised and lowered -at thev desired times. The upward movement of the core 90 will raise the covered box body to the position indicated`by dotted lines in Fig. 16, in which the lower edge of the (inverted) box body is just above retaining' hooks 380 at the lower v ends of normally vertical (preferably elastic) holders 381, said hooks having beveled inner surfaces so that they will yield as the boxv b ody is lifted, snapping back into a holding or supporting position as soon as the box bod reaches the position indicated. The holders 381 are carried by a stationary platform 382 having guides 383- (Fig. 6) for a slide rod 384 movable radially.` Said rod has rigidly is a vertical plate depending from the rod 384, to push the finished article off the hooks 380 and on toa stationary plate 386, preferlabl rounded or bent downward at its inner en to facilitate the transfer ofthe article to sald plate.- The holders 381 "(Fig. 16) are preferablyadjustable toward and from .secured to it the ejector proper 385, which `re'ceiving'setscrews'387, so'as to adjustthem properly when cores 90, 92 of different sizes are substituted. A The slide rod 384 (Figp is reciprocated at the proper times by a lin 388, pivotally connected at 389 with said rod,

and at 390 with a lever 391 fulc'rumed on the,

machine at 392. At 393 the lever 391 is connected pivotally Vwith a link 394,- having a like connection at 395 lwith an -actuating member '396 theinner end of which straddles .the shaft '61, while its intermediate portion carriesa roller 397 working infa cam groove 398 of a disk rigidly secured to said shaft.

The operation of theejector mechanism will be understood readily without any further explanation, it being understood that the upward and downward motion imparted to the v.core 90 by the cam disk 379, and the outward and inward movements given to the .to run the machine (as for a test to determine whether its parts are working properly). without feeding any box bodies. When the catch is in position, the bar 76 will not reciprocate and thus the conveyer 53 will simply slipvunderthe box bodies, the foremost box body being held stationary owing to its engagement with the stop bar 73.

The following mechanism is provided to lock the rotary sleeve 93 and the parts carried thereby against accidental motion after each partial revolution: Said sleeve has six holes 401 '(vilig. 10)*equally spaced around its periphery and in the same plane of rotation, while' the stationary pillar or housing 58 has one hole 402 with which the individual holes 401 come into registry successively after each partial revolution of the sleeve v93. The sleeve 93 isv adapted to be locked by the end of a slide 403, which end is adapted to project'through the hole 402 into the par-f ticular hole 401 whichat that time registers with the hole 402. The slide 403 straddles the shaft 61 and 'is guide in stationary brackets 404. In order Ato move the slide into and out 0f locking position, a roller 405 carried by the slide engages a'cam groove 406 on a member rigidly secured to the shaft'61.

It is also desirable at times to move themachine much more slowly than when it is driven 4by thel motor 69, such slow movement being employed for 'instance' to adjust the parts very accurately, particularly when the machine has been adapted to the manufac- Fig. e)

different size substituted, andthe mechanisms I co-operating with'the cores 90,-92 can also be adjusted to correspond to the dimensions 'ofthe box bodies employed in each particular case. handling boxes of different sizes, within a relatively considerable range.. For the purpose of giving ,the machine the slow movement referred to above, I have provided the mechanism shown infFi'gs. 1 and 7. At407, Ihave indicated a hand wheel secured rigidly to a shaft 408 which is movable lengthwise so that a pinion 409 on' saidshaft may be brought into or out of mesh with a gear 410 onthe lshaft .65. Normally, the pinion 409 is The machine is therefore adapted to' l.

out of mesh with the gear 410, asshown.V The i inner end of the shaft 408 is in engagement with a lever 411fulcrumed at 412. A link 413 connects the lever 411 with an arm 414 upon a vertical rock shaft 415. A rod 416 connects said armr414 with the clutch lever 417 fuicrumedat 418 mi adapted toshift the clutch 66 which controls the connection of the driving pulley 67 with theshaft 65.

As previously stated, a spring 70 normally keeps the clutchpengaged, and this, spring alsoholds the shaft 408 in its outer position vso as to disengage the pinion 409 from the gear 410. When the shaft 408 is moved in- Wardly to bring the pinion 409 into mesh with the gear 410, the lever 417 is operated at the same time through the lever 411 and its connections in such adirection as to disengage the clutch 66 from the 4pulley 67 Therefore, when theparts 407, 408, 409 are 409, 410 is automatically held in the inactive position. 'Y Y We claim: v

1. A box-covering machine comprising a rotary carrier,cores mounted on said carrier at 60 from each other and adapted to support box bodies and covers therefor, meansv for giving said carrier intermittently partial rotations of 60' each, and six devices located adjacent to the periphery of the carrier at points corresponding to those at which the cores are temporarily stationary between said intermittent partial rotations, the first of said devices serving to feed box bodies to the cores, the second to feed box covers and apply them in a fiat condition to'said box bodies, the third to bend all the sides of the covers against the box bodies, the fourth to bend the project- 

